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Electrical systemPart report

1992 Mercedes-Benz 300 Electrical system Problems

Complaints
5about this part
Share
23%of 22 total for the year
Median mileage
109,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 5 complaints about the electrical system of the 1992 Mercedes-Benz 300, 23% of the 22 complaints for this model year. Where a mileage was given, the median is 109,000 miles. 2 a fire, according to the filers.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“While driving my battery light comes on. I have replaced my battery twice in a 2-year period. Initially, my car wouldn't start. I was told that even while my car was off, something was consantly running causing my battery to fail. I had my new battery replaced and my inignition check and things associated with the battery replaced. The problem is happening again. Car is slow to start and battery light flashes on and off at intervals.”

NHTSA complaint #10116806, filed 2005-04, 109,000 miles

“I was driving down the street when smoke began to come from beneath the hood and into the vehicle. I pulled over and opened the hood and saw flames coming out from underneath the battery compartment. After extinguishing the fire the car no longer started. Upon inspection all of the electrical wiring had melted.”

NHTSA complaint #10393998, filed 2011-04

“Wiring harness is exposed outside of hood area. Dealership is aware of problem. Consumer stated that insulation is cracking and falling off all wiring around the engine.”

NHTSA complaint #8004706, filed 2002-02

“While vehicle was in driveway it caught fire in engine compartment on pasenger's compartment 8-10 hours after it was driven.cause of fire appeared to be electrical.”

NHTSA complaint #818463, filed 1997-12

Electrical system: other model years

YearComplaintsShare of year
1999233%
1997120%
1996225%
1995744%
19932462%
1992523%
1991316%
1988114%
198713%
198618%

Other parts of the 1992 Mercedes-Benz 300

Engine cooling
5 complaints
Brakes
3 complaints
Vehicle speed control
3 complaints
Visibility (wipers, defrost, mirrors)
2 complaints
Air bags
1 complaints
Fuel system
1 complaints
Other or unknown
1 complaints
Suspension
1 complaints
Tires
1 complaints
Transmission and drivetrain
1 complaints

← All problems reported for the 1992 Mercedes-Benz 300

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology